(19)

(11)

EP 2 601 798 A1

(12)

(43) Date of publication: 12.06.2013 Bulletin 2013/24 (21) Application number: 11814110.0 (22) Date of filing: 04.08.2011

(51) International Patent Classification (IPC):  H04R 25/00(2006.01) A61B 5/12(2006.01) A61F 11/00(2006.01) (86) International application number: PCT/CN2011/077987 (87) International publication number: WO 2012/016527 (09.02.2012 Gazette 2012/06)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR (30) Priority: 05.08.2010 US 371068 P 01.09.2010 US 379237 P 18.07.2011 US 201113184776 (71) Applicants: ACE Communications Limited Hong Kong (CN) Hospital Authority Kowloon, Hong Kong (CN)	(72) Inventors: VAN HASSELT, Charles Andrew Hong Kong (CN) SUNG, Ka Keung John Hong Kong (CN) LEE, Tan Hong Kong (CN) WONG, Ka Cheong Terence Hong Kong (CN) KAM, Chi Shan Anna Hong Kong (CN) LEE, Pui Tong Paul Hong Kong (CN) CHENG, Ka Kui Hong Kong (CN) (74) Representative: Tomlinson, Kerry John  Dehns St Bride's House 10 Salisbury Square London EC4Y 8JD London EC4Y 8JD (GB)